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SSAW Pipes

SSAW steel pipe (spiral submerged arc welded steel pipe) is formed by spiral bending of hot-rolled strip steel, and spiral seam steel pipe (also called spiral welded pipe, spiral pipe spiral steel pipe) is formed by automatic welding of submerged arc for inner and outer joints. welding line shape like a helix. It is using the same welding technology of Submerged Arc-Welding with LSAW pipe. Differently, SSAW pipe is spiral welded where the LSAW is longitudinally welded. The manufacturing process is rolling the steel strip, to make the rolling direction have an angle with the direction of the pipe center, forming and welding, so the welding seam is in a spiral line.

Chemical Analysis and Mechanical Properties of SSAW Steel Pipe

The raw material of the SSAW steel pipe includes steel coil, welding wire, flux. All of raw materials must be through strict physical and chemical maintenance before the investment.
StandardGradeChemical Composition(max)%Mechanical Properties(min)
CSiMnPSTensile Strength(Mpa)Yield Strength(Mpa)
API 5CTh400.03417417
J550.03517517
K550.3655655
API 5L PSL1A0.220.90.030.03335335
B0.261.20.030.03415415
X420.261.30.030.03415415
X460.261.40.030.03435435
X520.261.40.030.03460460
X560.261.40.030.03490490
X600.261.40.030.03520520
X650.261.450.030.03535535
X700.261.650.030.03570570
API 5L PSL2B0.220.451.20.0250.015415415
X420.220.451.30.0250.015415415
X460.220.451.40.0250.015435435
X520.220.451.40.0250.015460460
X560.220.451.40.0250.015490490
X600.120.451.60.0250.015520520
X650.120.451.60.0250.015535535
X700.120.451.70.0250.015570570
X800.120.451.850.0250.015625625
ASTM A53A0.250.10.950.050.045330330
B0.30.11.20.050.045415415
ASTM A25210.05345345
20.05414414
30.05455455
EN10217-1P195TR10.130.350.70.0250.02320320
P195TR20.130.350.70.0250.02320320
P235TR10.160.351.20.0250.02360360
P235TR20.160.351.20.0250.02360360
P265TR10.20.41.40.0250.02410410
P265TR20.20.41.40.0250.02410410
EN10217-2P195GH0.130.350.70.0250.02320320
P235GH0.160.351.20.0250.02360360
P265GH0.20.41.40.0250.02410410
EN10217-5P235GH0.160.351.20.0250.02360360
P265GH0.20.41.40.0250.02410410
EN10219-1S235JRH0.171.40.040.04360360
S275JOH0.21.50.0350.035410410
S275J2H0.21.50.030.03410410
S355JOH0.220.551.60.0350.035470470
S355J2H0.220.551.60.030.03470470
S355K2H0.220.551.60.030.03470470


SSAW Pipes FAQs

Q What's The Difference Between SSAW and LSAW?
A.

SSAW pipe takes form by rolling and welding a steel strip in a way that the pivotal direction is oblique to the axis or pipe center, making the weld seam in a spiral line. LSAW pipes are produced by molding steel sheets to a cylinder and joining the ends together by welding in a straight line.

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